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高速運算放大器 (GBW ≥ 50 MHz)

LMH6738

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非常寬頻、低失真三運算放大器

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LMH6738

現行
產品規格表 立即訂購

產品詳細資料

Architecture Current FB Number of channels 3 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 8 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 750 BW at Acl (MHz) 750 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 3300 Vn at flatband (typ) (nV√Hz) 2.3 Vn at 1 kHz (typ) (nV√Hz) 2.2 Iq per channel (typ) (mA) 10.5 Vos (offset voltage at 25°C) (max) (mV) 2.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 50 Input bias current (max) (pA) 15000000 Offset drift (typ) (µV/°C) 30 Iout (typ) (mA) 90 2nd harmonic (dBc) 80 3rd harmonic (dBc) 90 Frequency of harmonic distortion measurement (MHz) 5
Architecture Current FB Number of channels 3 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 8 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 12 GBW (typ) (MHz) 750 BW at Acl (MHz) 750 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 3300 Vn at flatband (typ) (nV√Hz) 2.3 Vn at 1 kHz (typ) (nV√Hz) 2.2 Iq per channel (typ) (mA) 10.5 Vos (offset voltage at 25°C) (max) (mV) 2.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 85 CMRR (typ) (dB) 50 Input bias current (max) (pA) 15000000 Offset drift (typ) (µV/°C) 30 Iout (typ) (mA) 90 2nd harmonic (dBc) 80 3rd harmonic (dBc) 90 Frequency of harmonic distortion measurement (MHz) 5
SSOP (DBQ) 16 29.4 mm² 4.9 x 6
  • 750 MHz −3 dB small signal bandwidth
    (AV = +1)
  • −85 dBc 3rd harmonic distortion (20 MHz)
  • 2.3 nV/Hz input noise voltage
  • 3300 V/μs slew rate
  • 33 mA supply current (11.3 mA per op amp)
  • 90 mA linear output current
  • 0.02/0.01 Diff. Gain / Diff. Phase (RL = 150Ω)

All trademarks are the property of their respective owners.

  • 750 MHz −3 dB small signal bandwidth
    (AV = +1)
  • −85 dBc 3rd harmonic distortion (20 MHz)
  • 2.3 nV/Hz input noise voltage
  • 3300 V/μs slew rate
  • 33 mA supply current (11.3 mA per op amp)
  • 90 mA linear output current
  • 0.02/0.01 Diff. Gain / Diff. Phase (RL = 150Ω)

All trademarks are the property of their respective owners.

The LMH6738 is a very wideband, DC coupled monolithic operational amplifier designed specifically for ultra high resolution video systems as well as wide dynamic range systems requiring exceptional signal fidelity. Benefiting from TI’s current feedback architecture, the LMH6738 offers a gain range of ±1 to ±10 while providing stable, operation without external compensation, even at unity gain. At a gain of +2 the LMH6738 supports ultra high resolution video systems with a 400 MHz 2 VPP –3 dB Bandwidth. With 12-bit distortion levels through 30 MHz (RL = 100Ω), 2.3 nV/Hz input referred noise, the LMH6738 is the ideal driver or buffer for high speed flash A/D and D/A converters. Wide dynamic range systems such as radar and communication receivers requiring a wideband amplifier offering exceptional signal purity will find the LMH6738 low input referred noise and low harmonic distortion make it an attractive solution.

The LMH6738 is a very wideband, DC coupled monolithic operational amplifier designed specifically for ultra high resolution video systems as well as wide dynamic range systems requiring exceptional signal fidelity. Benefiting from TI’s current feedback architecture, the LMH6738 offers a gain range of ±1 to ±10 while providing stable, operation without external compensation, even at unity gain. At a gain of +2 the LMH6738 supports ultra high resolution video systems with a 400 MHz 2 VPP –3 dB Bandwidth. With 12-bit distortion levels through 30 MHz (RL = 100Ω), 2.3 nV/Hz input referred noise, the LMH6738 is the ideal driver or buffer for high speed flash A/D and D/A converters. Wide dynamic range systems such as radar and communication receivers requiring a wideband amplifier offering exceptional signal purity will find the LMH6738 low input referred noise and low harmonic distortion make it an attractive solution.
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類型 標題 日期
* Data sheet LMH6738 Very Wideband, Low Distortion Triple Op Amp datasheet (Rev. E) 2013年 3月 18日
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML 2020年 7月 17日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日

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模擬型號

LMH6738 PSPICE Model

SNOM124.ZIP (3 KB) - PSpice Model
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ANALOG-ENGINEER-CALC — 類比工程師計算機

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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VOLT-DIVIDER-CALC — Voltage divider calculation tool

The voltage divider calculation tool (VOLT-DIVIDER-CALC) quickly determines a set of resistors for a voltage divider. This KnowledgeBase JavaScript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. VOLT-DIVIDER-CALC can also be used to (...)
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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